@Owey I don't reckon Sandon is an elite visionary or anything like that. I just think he is up to par, maybe above average for an NRL halfback. Ponga is second to Sandon with Brown a distant 3rd, for mine. And it falls precipitously from there.
Athletically, however, Sandon is among the top halfbacks for speed, agility, acceleration etc. He is probably middle of the road technically. Whereas Brown, he is elite technically, better than Ponga in many respects, particularly the basics in passing and kicking.
But point being, you can't just have a team full of Ryan Papenhyuzens with a good game plan and a good coach. Someone needs to be steering the ship, predominantly, and if the role is shared then it is best shared among as few players as possible otherwise you can get a conflict in short-term decision making which is usually counter productive.
Having one dude who seems to always know which side of the ruck the ball needs to go, to which players, why and the tempo at which it must be done is always best for a footy team. Even if that dude isnt always calling for the ball.